We keep together like we kept together always. We make jokes about each other, compete games with each other and have strong economical competition. Maybe this made the Nordic countries so successful. Since many decades we could travel free of visa or passport inside of the Nordic region, we could work or study easily in our neighbor countries.
Nordic co-operation involves Denmark, Finland, Iceland, Norway and Sweden as well as the Faroe Islands, Greenland and the Åland Islands. Official co-operation between the Nordic countries is one of the most comprehensive regional partnerships anywhere in the world.